Door-fastener.



No. 645,914. Patented Mar. 20, |900. J. W. DOTSON.

Doon FAsTENEn. (Application filed AugA 14, 1899.)

(No Model.)

UNITED STATES i PATENT OFFICE.

JOHN W. DOTSON, OF CHICAGO, ILLINOIS.

DOOR-FASTENER.

srnoIFIcA'rIoN forming part of Letters Patent No. 645,914, dated March2o, 1900.

Application tiled AugustV 14, 1899. Serial No. 7271240. (No model.)

To @ZZ whomzit may concern,.-

Be it known that I, JOHN W. DorsoN, a

citizen of the United States, residing at Ohicago, in the county of Cookand State of Illinois, have invented certainnew and useful Improvementsin Door-Fasteners; and I do hereby declare the following to be afull,clear, and exact description of the invention, such as will enableothers skilled in the art to which.

it appertains to make and use the same.

This invention relates to improvements in door-fasteners, and has forits` object to proment of parts hereinafter described and setforth,reference being had to the accompany-V ing drawings, in Whichs- Figurelis a perspective view showing the fastener device attached to a doorand jamb in position to hold the door closed. Fig. 2 is atransversesection of adoor and j amb,shoW ing one mode of attaching the fastenerto the jamb and more clearly illustrating the operation of securing thedoor. Fig. 3 is a side elevation of the fastener device with a por? tionof the slide broken away, showing the slide dog-bar in' a closed orholding position. Fig. 4 is an edge or plan view of the device; Fig. 5,a section of the fastener, taken on the line 5 5 of Fig. 5; and Fig. 6,a section taken on the line 6 6 of Fig. 5.

Referring to the drawings, l designates the holdingbar,made froma thinsteel bar or plate and adapted to be inserted between the edge of thedoor and face of the jamb. One end of said holding-bar is provided witha hook or flange 2, formed by bending the end of the bar to a rightangle thereto, as shown. Said hook is adapted to be inserted into theusual slot opening or recess 3 of the door-j amb 5o designed for thelock-bolt when the door is locked. Said holding-bar is serrated orprovided with teetli iat upti one edge fo'r a porl v bar. Said slide ismade from a blank of sheet metal, the' body of which is bent and formedapproximately U -shaped and is adapted to be adjusted on saidholding-bar to the thick# ness of door to be fastened. Said slide ispro-A vided at one en d with iianges upon either side; projectingoutward at right angles therefrom, the longer one of which, 6, isadapted to press against the door to prevent its being opened and theshorter one, 7, to rest against. the edge' of the j amb to resist thelateral strain upon the fastener when the door is pressed against it.The edges and sides of said slide when in position upon the holdin g-barextend some distance above the toothed edge of said holding;

bar, and between said extended sides a dog'- ing-bar, is insertedl Oneend of said dog'- bar is pivotally attached to said slide by means ofthe pivotepin 10 and is adapted to be movedV thereon to engage anddisengage said teeth. The oppositeend of said dog-bar is extendedbeyond'the end of the slide by means of which said dog-bar is moved, oneend of,V a chain l1 being attached thereto for that purpose and theother end of said chain being connected to a locking-pin 12, adapted tobe inserted in the hole 13, passing through the dog-bar and slide, bymeans of which said slide is iirmly held and secured to saidholding-bar. The chain serves the double purpose of attaching thelocking-pin to the fastener and for convenience in lifting the dogbar.One or more stud-pinslf serve to distance the sides of the slide apartfor the free movement of the dog-bar and to form abearing for the slideupon the edge of the holding-bar.

When it is desired to use the fastener permanently in conjunction with alocked door or Where there is no lock, a small slotted plate (not shown)is provided, adapted to be secured to the door-jamb.

The operation is apparent from an inspection of the drawings. The slideis removed from the holding-bar by taking out the locking-pin andlifting the toothed dog-bar from Contact with the holding-bar. When thehook end of the holding-har is inserted in the lockreeess of the jamb,the door is then closed and the slide placed upon the bar and pushed upagainst the door, when the dog-bar is closed down to the position shownin Fig. 3 and the lock-piu inserted, firmly securing the slide to theholding-bar and against the door. It will be observed that theconstruction is such that it makes no difference whether the door to beheld is right or left handed.

In my invention I have avoided the use of springs or parts liable toderangement. The construction is desirable for its strength andsimplicityand for the convenient manner and I 10W cost at which it canbe produced.

Having described my invention, I claim- In a door-fastener thecombination comprising a holding-bar provided with a hook or iianged endadapted to be inserted in a slot in the face of adoor-jamb, and providedupon one edge with a seres of teeth or notches, a slide iitted to slideupon said holding-bar, said slide provided with two flan ges uponopposite sides at one end, one of which is adapted to press against adoor to hold it closed, and the other or opposite one to rest againstthe doorjanib, a dog-bar pivotally attached to said slide,and providedwith teeth adapted to mesh with the teeth upon said holding-bar; and alocking-pin adapted to lock said dog-bar thereto and to said slidesubstantially as and for the purpose set forth.

In testimony whereof I aix my signature in presence of two witnesses.

JOHN V DOTSON.

Witnesses:

EMIL METZER, JOSEPH D. FALLEY.

